K-Drive bags are for the serious only or the
uncomfortably 
welloff. Decent leather bags start round 5 C-notes, no matter whom you purchase them from.
You will need hangers. You will need bags. Hangers take the form of rails or backing plates fixed to the saddlebags. Look for Honda rails. Look for EZ brackets. Triumph will sell you some rails (of course). EZ brackets require a stout, back saddle bag panel. Throw-over bags (used with rails) require no reinforcement.
Price Willie & Max and some after market rails.
Price Saddleman saddlebags and EZ Brackets and plexiglass backing plates. (Plates you fashion from a sheet of material).
Then look again at the K-Drive saddlebags system. About a 1.5 bill premium. Not bad.
Hope this helps. Feel free to search for more info as a lot may be found via this link
Search.